Permanent mold casting is a metal casting process that uses reusable metal molds to produce components with consistent dimensions and good surface quality. Unlike sand casting, this method relies on durable steel or cast iron molds that can be used repeatedly, making it suitable for medium- to high-volume production.

In this process, molten metal is poured or injected into a preheated metal mold under gravity or low pressure. Metal molds provide faster heat transfer than sand molds, which leads to quicker solidification, finer grain structure, and improved mechanical properties in the final casting.

permanent mold casting is commonly applied to non-ferrous metals such as aluminum, magnesium, and copper alloys. Compared to sand casting, it offers better surface finish and tighter tolerances, reducing the need for extensive post-processing.

The process is widely used in industries such as automotive, aerospace, and industrial manufacturing, where consistent quality and repeatability are essential. Typical applications include housings, brackets, and structural components.

Although the initial cost of metal molds is higher, permanent mold casting provides long-term cost efficiency for repeated production runs. Overall, it is a reliable casting method that balances quality, efficiency, and performance.